According to Forza's facebook page, the Forza Horizon 2 gets an expansion with 10 Porsche's. It now seems like, that the EA-only license from Porsche has expired because Forza Horizon releases a Porsche Expansion. For more details read it here: http://www.gamezone.de/Forza-Horizon...ndigt-1161111/ [German only]
it has not expired, forza just makes a deal with ea: forza horizone 2 gets porsche, ea gets a lot of money. as simple as that, the same thing happened with forza motorsport 4. Also, did you not see the last sentence in their article? "Thanks to a new agreement between Porsche, Electronic Arts and Microsoft, there will be in Forza Motorsport 6 Porsches." agreement does not mean ea lost the licence.